Just some info on my encounter with the AK240SS today. Enjoy (grammars messy because I rushed it)
I live in Korea atm and I just visited my favourite audio dealer and they had a special event with 7 emplyees or so from AstellnKern showing off all their products. I came back just 30 mins ago. They brought the normal 240s, gold ones, Blue Note ones, and finally, the SS! I was questioning my eyes for one second and was drooling then was listening to a bunch of em. They had one guy who has a high position in the company and he tells me SS's price is in the $3000 range and it is indeed stainless steel which is supposed to improve sound just for its hardness and so on. That is the only difference with no additional hardware difference according to the guy. I was not able to listen to it but I asked if they get get it out of this special display case made for a few of the 240s which included a SS (there were like 6-8 240s outside the box for listening). I held it and with a normal 240 in the other hand and the weight difference was BIG. The SS was pretty dang heavy! I wouldn't pay so much for more weight even if there's a difference in sound personally but it's just me. It kinda takes away the whole purpose of using duraluminum to make it light
Additional side notes were they also had JERRY HARVEY AUDIO LAYLAS AND ANGIES! omg! I listened to both and the Layla out of the balanced output. I will fail to go to sleep tonight. Layla sounded Phenominal! One of the best sounds I've ever heard including loudspeakers, headphones, etc. The thing was way too big and uncomfy though many were having trouble with the fit. But then the sound... the sound...... It's definitely much more "balanced" and "audiophile" and "detailed" compared to the Roxxanes. Angie was a dissapointement. Many have said that Angie was pretty close to the Layla in many ways, and it's reallyyy not close. at all.. Oh man, Oh man, the sound's still stuck in my head. Good. cheers!
ps. they have a black french case which feels different from the original italian one. nice looking!
oh and the AK240SS itself is pretty good looking but looks wise my personal preference is Blue Note>original gun metal>gold>SS Others opinion would differ